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Note 11 - Shareholders' Equity (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2015
Dec. 31, 2014
Note 11 - Shareholders' Equity (Details) [Line Items]      
Stock Authorized 560,000,000 560,000,000  
Common Stock, Shares Authorized 500,000,000 500,000,000  
Common Stock, Par or Stated Value Per Share (in Dollars per share) $ 0.01 $ 0.01 $ 0.01
Preferred Stock, Shares Authorized 60,000,000 60,000,000  
Preferred Stock, Par or Stated Value Per Share (in Dollars per share) $ 0 $ 0  
Common Stock, Shares, Outstanding 42,000,000 42,000,000 41,900,000
Preferred Stock, Shares Outstanding 0 0 0
Treasury Stock, Shares 300,000 300,000 200,000
Allocated Share-based Compensation Expense (in Dollars) $ 6 $ 17  
Omnibus Incentive Plan 2013 [Member]      
Note 11 - Shareholders' Equity (Details) [Line Items]      
Allocated Share-based Compensation Expense (in Dollars) $ 2 $ 9